Columbia River Entrance, Cape Disappointment.

1946

Bascom

Mouth of Columbia River.

1814

Lewis, Meriwether

Mouth of Columbia River.

1815

Lewis, Meriwether

Peacock Spit, Columbia River.

1946

Bascom

The Morning Oregonian, Cascade Locks Edition, December, 1896.

1896

Routledge, Fred A., 1873-1936

Navigation Chart For the Columbia River, Sheet No.1, Entrance to Upper Astoria

1903

C&GS

1:40k

Columbia River Entrance, the Wrecks and a Marine History of its Development.

1936

McBean, K.

Columbia River Entrance to Harrington Point. U.S.C. & G.S. 6151

1945

United States Department of Commerce.

1:40k

North Beach Washington on Line of Union Pacific System.

1918

Routledge, Fred A., 1873-1936

Oblique Map of Willapa Bay, Washington.

1978

Alpha, Tau Rho